Related Experiment Videos
[Structural features of two neutral polysaccharides Md-1, Md-2 from Ophiopogon japonocus]
1China Agricultural University, Beijing 100094.
Abstract
Objective:
To study the chemical feature of Md-1, Md-2 polysaccharides which extracted from Ophiopogon japonocus.
Method:
Two constituents were isolated and purified by gel-filtration chromatography. Physicochemical constants and spectral analysis further were used to study their structural features.
Result:
The mean molecular weights were estimated to be 27064 and 48651. Structures were composed of D-glucose.
Conclusion:
Md-1 and Md-2 polysaccharides are glucosans, which only are composed of D-glucose units joined by alpha-(1-->4) glucosidic linkages.